In a medium-size bowl, whisk the flour, sugar, and salt together. Work in the butter with your fingertips until the mixture looks like the consistency of sand with no large pieces of butter. Press the mixture together to make chunks. Set aside in the refrigerator until ready to use.

In a medium-size bowl, combine the cherries and 1 tablespoon (13g) of sugar. Let stand 30 minutes, then drain the cherries, reserving the juice.

Preheat the oven to 375ºF (190ºC). Line a 12-serving muffin pan with tulip muffin liners.* (You can also use standard muffin liners. They hold less batter so you'll end up with a couple of extra muffins.)

In a medium bowl, whisk the flour, baking powder, baking soda and salt together until well combined.

In a large bowl, beat the butter, 1 cup (200g) of sugar and lemon zest with an electric mixer at medium speed, until light and fluffy. Beat in the eggs, one at a time, until incorporated. Beat in the extracts. On low speed, mix in the flour mixture in two additions, followed by half of the sour cream after each addition. Beat just until combined. Do not over mix. Reserve a couple of tablespoons of the chopped cherries. Coat the remaining cherries with 2 teaspoons of flour, then gently fold them into the batter.

Divide the batter evenly into muffin liners. (If using standard muffin liners, fill 3/4 full.) Top with the reserved cherries and the crumb topping. Bake at 375ºF (190ºC) for 5 minutes. Turn the oven heat down to 350ºF (180ºC) and continue baking the muffins until a toothpick inserted into the centers comes out clean, about 12-17 more minutes. Do not over bake.

Transfer the muffins to a cooling rack to cool completely. Drizzle with icing and top with cherries if desired.

In a small bowl, whisk the powdered sugar, cherry juice, heavy cream, and 1 tablespoon of lemon juice together until smooth. Add additional lemon juice, if needed, until your desired consistency is reached.